Belt-shifter.



W. ELKIN.

BELT SHIPTBR. l .1

APPLIOATION FILED l1116.3, 1911.

Patented me 11, 1912.

W. ELKIN.

BELT SHIFTBR. APPLICATION FILED AUG. s, 1911.

Patented June l, 1912.

2 SHEETS-SHEET H.

IN VEN T? MMWf/u Zim? ATTOHIVEYS y Eig. K. eide View, tie Eme SW3 ci 1;) Eine fl-" f f Fig. 5?

'gare l is e .11d the leiter eeeuszed im n DLL bearing; ging THS ESG GEORGE UMS TQ the hangggee 3a receiving); me uppel' end of a pest 3,3. The pesi; is held in adjueted pesjon, by means f ,e set screw 19. A 'beai'ng' il() is cennecfed wh @he ber end h peet e z he he fing a socket 21 mi me emi ef 'bhe post, and the 'bearing s he@ in paee Thy u, se screw' 22. A sm 23 jommed in the beerings 20, :m providec at one end with oeve 23% The heed 1 adjacent i1-e -gh'e beve gem' 16 s provided with an angar arm 24;.. hafving A plete u' angled alongside the shaft :md is sup/perte@ by a eem 31 on the she-f between the crank 15 and the adjacent berinfg; 13, am? by e lateral lug; 32 on the erm The 'plaie i5 Secured 11o the lug, and e edler ey Crews 335 and if: povded spaced ne'xehes 3M m im he rilmfl. A, emwfiuge the gli-Mie, and the said car-- ed with n, pair of spaced arms ilewe-1- 'ie shaft IA enehmm hrw; a? end 37 r' ipeeiveljsg el crfz' The carriage also pu vided with a yufieo Space@ Socke 38, ex "fending" in the opmee dieeton imm the arms. A 'od'' reeeved in each socket, :md n loop 40 suppm'ed by the rods, the 'e lime?) being plogvded at eich end with whiff?) eneireies ihe mijl@ The loop elxgjaw 'the bel?" le E?, :m a ed iin one and of m Heffi,

e. bea-ring; 25m iis out@` end, and *the beari@ meuniiefl en he 511ML the said disks 'nel iii engagement Wilsi e. iiotcl'i. The suiil clislis :like eppesil'ely air ranged, ille mutilated iLieii-ion el? ene being exactly eppesile lie iiiiiiiiililateil peilieii oi die elllen The miilzilalecl poil-ien of escli disk extends eifel' ll) flegi'ees of lle eiiciimference of llie lisl-i, so lia' wlieii oiie clisli disengnges from the notch iii lie. plete 30, the other (lisli passes immeflislely inte engagement' with another iioteli. The eclge of the disk is aflspled lo kengage one of ille notches 3.4.. A second millilalecl clisli lli is arranged 0n the slieit, hele/een l-ne cent bearing Si' of lie eiiifriege :iiifl a lieni ing 45 eiigzigiiiglie slief mi ille eppesiie side of ille disk from llie lie hearing 45 .is in llie angular peiioii lini'ni l5" seciileil te llie my lliolls :incl llie said flisl; iuiiis fieelli/ ivitli llie slm?? vThe sleeve 42 piovirlefl Wili spzieeil paallel spii'lil i'i! -l's' on iis periplieiiy' lie saiifl ribs forming l. Cani giofvmfoi eng'ziggeiiieiii by e roller oii a pin oi lue; el?) iii :i boss er liiili on mi ex ciisieii fro ille carriage. The will exi" mi susi/es mii-illy will il? llie beiienlli ille is preiiilefl'ii y iiieeli lie lieli.g similar is 'l shaft lil. l'lie leef' before slaiefl., siii; eiie lo lelie n pesi limi of ille lie lii operi: "mi: ii'lien it is clesi l le i'. "'egislei'iiig pelle?! lis iolefeil hoii eofi'espoiiiliiig lo lie il.

i snello-iis le lli oy menus of i shaft 23. nml me coimevioiis bel-Ween ille smid slm'lil: mill shafts 'l-l uml 'f, slmif :'l is minted :il ille sume :lf-ile iii-'speed :is slizil ll. llie ivlwels 3.6, 29 amd QSE aie of equal size. s0 ilml llie carriages of llie le speelive slizifs move :it lie same izile oi' speed when the shells :ire rotated. As lie shafts ll amil milizie, ilie disk 43 will engage :i notch 34, illus holding "glie enrl'izige from movement longilmlinally of the shaft ll as long :is llieflisk in engagieiiien willi ille iioteli. '.llie disk il is meanwhile disengaged from tlie plaie 30, the miililntecl portion of lli@ disk moving acljzicent lto llie imiei' elige 0i llieplae 30. The roller 48 on llie carriage by its engagement with the cam in ille sleeve, causes the said carriage to lmi'el with respect lo shaft and the sleeve. This movement een- Vdimes :is long :is lhs mutilated portion oie 43 moves oii of Contact wiih the iiotcli,

mees

engagement of the roller i8 with the eaiii on the sleeve cziiises tlie sleeve lo move lengliiflinzilly of the sliai'i: 14, iii lie same dires'- l'ioii ilial; the Carriage lies pievioiisly moied; "llie carriage and tlie sleeve l2 aire thus iespeet te the slisl't. mens of can; sleeve and. carriage eeiiiiiues es long es llie shaft is i'etalecl, slid lle YLbell is carried Willi lelie cai'iiage. bell; may be skilled G to viliev other iii this manne?. ll; will 'De neieeil that fi-lie carriage is zippioimzitely twice tlie leiigli of ilie sleeve, se that 'llie sleeve, u ,fl ilse eeiiiege move alieni lf-.e same 3isl'ziiice eseli time. llie distance moved by llie efiiiizige is siiflieieii'l le sliit ,ilie 'belt iem Ciie sel l eleiii;

l; eombiiiliioii Willi spec-eil oppesiely fisiigeil .se-@tiens lo the oiliei.

eene pulleys., and s. belt ille iegiseiiiig sleiepe'ee'tiiis "is, e. shi "'fng iiieeliaiiisis iiem iiieeliziiiism eeiiipfisiiig a.

.l wi .li lie airis ille mille zi muli e ceri-ieg iioiclies to oeli l-lie e fringe, 'ssiol Crisis relating Willi lieslizift, iiiil being oveaeli disk extending eifel' E80@ ef tlie eireuiiifeieiice of lie disk, and meses for simiilaneoiisly i'ostiiig tie sliafts.

2. In cemeination with speeecl eppositely arranged sleppel eoiie pulleys, mici :i beltceimeeiiiig alle registeii g steppeclsectioiis of lle pulleys, of a sliifing mechanism iiezii.

from one end el' the pulleys eiiii ,iis

each pulley, esuli mechanism eeziipi-isingl sl'mft paisllel 'with ille axis of the pnl ey9 s sleeve loosel on lie s lift and presided with u spiral ca m greeve on its periphery, a carriage proviilecl Witlinlfezii'ing engaging tlie shaft on' esel; side of the sleeve, llie distance besween the beaiiiigs being approximeiely twice the leiiglli of the sleeve,-

spaced psifillel foils esteiifliiig laterally liom the eeisisge. e loop engaging lie bellenel pieviiiecl each eiil with sii sli'fliwf oii e mia s irel plaie salia-cent ze lie sliaf;

ami povifleci wili spliced nole'hes, meses eeiiiiececl Willi the eaii'is movement of the sleeve, means connected with theVsleeve` for engaging the -notches to lock the said sleeve yduring the movement of the carriage, said means beingy connected with the shaft and being oppositely arranged, a roller on the carriage engaging 'the groove, and means for simultaneously rotating both shafts.

3. In combination with spaced oppositely .arranged cone pulleys, and a belt connecting the pulleys, of a shifting mechanism near each pulley, each mechanism comprising a shaft parallel with the axis of the pulley, a sleeve loose on the shaft and provided with a spiral cam groove on its periphery, a carriage provided with a bearing engaging the shaft on each side of the sleeve, and a roller engaging the groove, the distance between the bearings being approximately twice the length of the sleeve, spaced parallel rods lextending laterally from the carriage, a loop engaging the belt, and provided at each end with an eye sliding on a rod, means for simultaneously rotating both shafts, and means in connection with the shaft for locking alternately the sleeve and ythe carriage.

4. In combination with spaced oppositely 'Y arranged conepulleys, and a belt connecting the pulleys, ofa shifting mechanism near each pulley, each mechanism comprising al shaft parallel with the axis of the pulley, a sleeve loose on the shaft and' proand a roller engaging the groove, the dis-' vided with a spiral cam groove on its pe- .rlphery, a carriage provided with a bcarmg engaging the shaft on each sideof the sleeve,

tance between the bearings being approximately twice the length of the sleeve, a loop -for'engaging the belt'slidably connected with the Carriage, means for alternately locking the sleeve and the carriage from movement with respect to the shaft, and means for rotating' both shafts.

5. In combination with spaced oppositely arranged cone pulleys, and a belt connecting the pulleys, of means near each pulley.

for shifting the belt, said'l means comprise ing a shaft parallel with the axis of each pulley, a sleeve provided with a spiral groove on the shaft, a carriage slidalole on the shaft provided with a lug engaging the groove of'thesleeve, means for simultaneously rotating the shafts, and means for alternately locking the sleeve and the-carriage from movement with respect to the shaft.

6. In combination with spaced oppositely arranged vcone pulleys, arid a belt connecting 7. A 'belt shifter comprising a shifting means arranged near each end of the belt, said means engaging opposite runs of the belt, and comprising each a shaft arranged` transversely to the belt, a sleeve on each shaft,l a carriage slidable longitudinally of each shaft, means for simultaneously rotating the shaft, means for alternately locking the sleeve and the carriage from movement longitudinally of theshaft, and a connection between the sleeve and the carriage for moving each element when the other elenient is locked from movement longitudinally of ,the shaft.

VARREN ELKIN. W'itnesses:

J. T. HASTINGS, S'roNEn OGDEN. 

